A Battery so Small, You’ll Never Know if it’s Included



When I conduct interviews, I use a small digital recorder that’s powered by one AAA battery. I carry extras, but they’re so small I often lose them, or they fall through tiny holes in my pockets. And now, world, you want to make one smaller than a grain of sand? I hope that shit’s rechargeable, because taking it out and replacing it’s gonna be a sumbitch.

Actually, this sucker’s made by a 3D printer. I guess if you run out of charge, it’s reprint time:

To create the microbattery, a custom-built 3D printer extrudes special inks through a nozzle narrower than a human hair. Those inks solidify to create the battery’s anode (red) and cathode (purple), layer by layer. A case (green) then encloses the electrodes and the electrolyte solution is added to create a working microbattery.

There are tons of practical uses for this thing, but somehow I think, knowing humanity as I do, that light-up tattoos will be happening way before cancer-killing miniprobes.

Check out video of the battery being printed after the jump.

About Author

Luke Y. Thompson has been writing professionally about movies and pop-culture since 1999, and has also been an actor in some extremely cheap culty and horror movies you will probably never hear much about (he is nonetheless mostly proud of them, as he met his wife on one). As editor of The Robot's Voice since 2012, he can take the blame for the majority of the site's content, all of which he creates because he loves you very, very much. (Although he loves nachos more. Sorry.) Prior to TRV, Luke wrote for publications that include the New Times LA, Los Angeles CityBeat, E! Online, OC Weekly, Geekweek, GeekChicDaily, The L.A. Times, The Village Voice, LA Weekly, and Nerdist